課本中不會教你的[A]82　at a cost of，at the cost of和at cost

82　at a cost of，at the cost of和at cost

① at a cost of表示“以……價格”，同錢幣名詞連用。

She bought the car at a cost of 10，000 dollars. 她用10000美元買了那輛車。

② at the cost of表示“以……為代價，用……換來的”，常同生命、血汗、勞力等名詞連用。

He gained the wealth at the cost of his honor. 他毀了名譽獲得了這筆財富。

They won the battle at the cost of many lives. 他們犧牲了許多人才贏了那一場戰(zhàn)斗。

③ at cost表示“照成本，照原價”。

They sold the computer at cost. 他們照原價把那臺計算機賣了。